DeepSeek Harness Plugin: dsh-llm-grok-oauth

`dsh-llm-grok-oauth` is a plugin for DeepSeek Harness that allows users to log in to their Grok account via OAuth, enabling direct access to SuperGrok or X Premium+ subscriptions without requiring an xAI API key. The plugin supports automatic token refresh, real-time model catalog retrieval, and streaming. Users must have DSH version 0.1.0-rc.6 or later, install the plugin via `npx`, and log in through the settings. `dsh web` must be restarted after installation. Please ensure stable network connectivity and that the account holds the required subscription. This plugin eliminates the hassle of manually managing API keys.